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Find cheap one-way flights from London to San Francisco starting at US$426.

Discover our range of affordable one-way and round-trip flights from London to San Francisco and kick-start your next adventure today!

  • One way
  • Round-trip
      • LHR19:50
        26h 45m
        1 stop
        SFO14:35
        Wed, Aug 28|London - San Francisco|TAP Air Portugal
        US$426US$741
        43% OFF
        43% OFF
        US$741US$426
      • LHR19:50
        26h 15m
        1 stop
        SFO14:05
        Mon, Sep 9|London - San Francisco|TAP Air Portugal
        US$427US$741
        42% OFF
        42% OFF
        US$741US$427
      • LGW07:50
        21h
        1 stop
        SFO20:50
        Wed, Aug 21|London - San Francisco|Vueling Airlines
        US$430US$741
        42% OFF
        42% OFF
        US$741US$430
      • LGW18:05
        27h 45m
        1 stop
        SFO13:50
        Wed, Aug 21|London - San Francisco|easyJet
        US$444
        US$444
      • LHR19:50
        26h 30m
        1 stop
        SFO14:20
        Fri, Aug 23|London - San Francisco|TAP Air Portugal
        US$474
        US$474
      • LHR19:50
        26h 45m
        1 stop
        SFO14:35
        Wed, Aug 21|London - San Francisco|TAP Air Portugal
        US$501
        US$501
      • LHR19:50
        26h 45m
        1 stop
        SFO14:35
        Tue, Aug 20|London - San Francisco|TAP Air Portugal
        US$504
        US$504
      • LHR06:10
        20h
        1 stop
        SFO18:10
        Tue, Sep 3|London - San Francisco|British Airways
        US$511
        US$511
      • LGW14:50
        31h 45m
        1 stop
        SFO14:35
        Thu, Sep 5|London - San Francisco|TAP Air Portugal
        US$522
        US$522
      • LHR19:50
        26h 15m
        1 stop
        SFO14:05
        Mon, Sep 16|London - San Francisco|TAP Air Portugal
        US$543
        US$543
      • LON13:00
        3h 5m
        Direct
        SFO14:00
        Sat, Aug 3|London - San Francisco|TAP Air Portugal
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to book flights from London to San Francisco?

Explore the best time to buy affordable tickets to San Francisco with our price trend chart, which predicts how flight prices will change in the coming weeks from previous data.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Cheapest airlines flights from London to San Francisco

Which airline provides the cheapest flights from London to San Francisco? Discover the option that best suits your travel needs before embarking on your journey.

Norse Atlantic Airways
From US$226
Vueling Airlines
From US$286
easyJet
From US$326
Wizz Air Malta
From US$359
PLAY Airline
From US$360
British Airways
From US$407
ITA Airways
From US$421
Jet2.com
From US$425
WestJet
From US$435
Air France
From US$438
ANA airlines

Find more flights and airlines

Find cheap flights from London to San Francisco by different airports

There are various non-direct routes from London to San Francisco which could be cheaper and faster! Check out these alternative options to see if they could work for your trip.

  • Cheapest
    Norse Atlantic Airways
    LGW
    10:45
    30h 17m
    1 transfer
    SFO
    09:02
    Gatwick Airport - San Francisco International Airport
    Wed, Sep 18Norse Atlantic Airways
    US$226
  • easyJet
    LTN
    06:05
    37h 56m
    2 transfer
    SFO
    12:01
    London Luton Airport - San Francisco International Airport
    Wed, Sep 18easyJet
    US$326
  • easyJet
    SEN
    11:25
    34h 40m
    2 transfer
    SFO
    14:05
    London Southend Airport - San Francisco International Airport
    Mon, Sep 2easyJet
    US$334
  • easyJet
    SEN
    11:25
    34h 40m
    2 transfer
    SFO
    14:05
    London Southend Airport - San Francisco International Airport
    Mon, Sep 2easyJet
    US$334
    Find More Flights

Frequently Asked Questions

  • When are flight tickets from London (LON) to San Francisco (SFO) the cheapest?

    Airlines adjust prices for flights from London to San Francisco based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from London (LON) to San Francisco (SFO) cost?

    According to Trip.com's data, the lowest price is around $1,619.

  • How long does it take to fly from London (LON) to San Francisco (SFO) and what is the distance?

    It takes around 11 hours 4 minutes to fly from London (LON) to San Francisco (SFO).

  • What is the transportation method from the main airport to downtown in San Francisco?

    • The distance from San Francisco International Airport to downtown is about 17km. It takes about 30 minutes by taxi.

  • What are the most popular airlines that fly from London (LON) to San Francisco (SFO)?

How to find a cheap flight from London to San Francisco

Understanding the common pitfalls when booking your flight tickets can help you save massively when it comes time to fly. We’ve listed our six essential steps to keep in mind when you’re booking flight tickets to help you find the best price.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

London to San Francisco Flight Information

Cheapest nonstop flight price

$426

Cheapest round-trip ticket price

$480

Off-season for travel

May

Peak season for travel

January

Flight distance

8,628.48km

Average flight time

11 hours 4 minutes

Popular airline

Air France

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